Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9505
Days in orbit
Revolutions
≈ 14.7
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for CZ-4 DEB.
Object identification
Identified? True
Debris? True
Object name: CZ-4 DEB
International designator: 1999-057KZ
Object number (NORAD): 26454
Object ID (CCSDS): 26454
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 97.827 minutes
Inclination: 98.3507 deg
SMA: 7032.871 km
Apoapsis: 694.601 km
Periapsis: 614.871 km
RAAN: 350.7661 deg
Eccentricy: 0.00566841
Argument of periapsis: 142.4277 deg
Mean anomaly: 347.4624 deg
Mean motion: 14.71986298 rev/day
Mean motion (dot): 0.00009777 rev/day2
B* drag term: 0.0015261045 1/REarth
Two-line elements (TLE)
Creation date: Oct. 21, 2025, 6:24 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 21, 2025, 9:33 a.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 26454U 99057KZ 25294.39806061 .00009777 00000-0 15261-2 0 9993
TLE line 2: 2 26454 98.3507 350.7661 0056684 142.4277 347.4624 14.71986298336444
Live tracking on map
Real-time ground track for satellite CZ-4 DEB.
Associated space launch
The CBERS (China Brazil Earth Resources Satellite) or ZY 1 (Zi Yuan) satellites are designed for global coverage and include cameras to make optical observations and a data collecting system to gather data on the environment. They are unique systems due to the use of on-board sensors which combine features that are especially designed to resolve the broad range of space and time scales involved in the monitoring and preservation of the ecosystem. They are operated jointly by the China Centre for Resources Satellite Data and Application (CRESDA) and the Brazilian INPE (Instituto Nacional de Pesquisas Espaciais, National Institute of Space Research).
CZ-4 DEB was lifted into orbit during the mission ‘Long March 4B | Zi Yuan 1-1’, on board a Long March 4B space rocket.
The launch took place on Oct. 14, 1999, 3:15 a.m. from Launch Complex 7.
For more information about the launch, click the button.

Long March 4B | Zi Yuan 1-1
Agency: N/A
Status: Launch Successful
Launch date: Oct. 14, 1999, 3:15 a.m. UTC
Rocket: Long March 4B
Launch pad: Launch Complex 7
Location: Taiyuan Satellite Launch Center, People's Republic of China
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